Device for raising or lowering swinging sashes



l (No Model.)

D. P. HOPKINS. 'DEVICE POR RAISING OB. LOWBRING SWINGING SASHES. l No.509,876-, .Patented Nov. 28, 1893.

Fvg i a( n, a Fg f8 -S= z zr i :'15 i'"/;I J Z "I a/ a/IXLJ Zl/Z I z I Ab i 1 l l I.. l l g i l l l d i a J a/f {Ll/E M4 i //a jl a a. i, gd, d?Z za 2r UNITED STATES* PATENT OFFICE.

DAVID PQHOPKINS, OF ALLEGHEY, PENNSYLVANIA.

DEVICE FOR RAISING OR LOWERING SWINGING SASHES.

SPECIFICATION forming part of Letters Patent No. 509,376,01ated November28, 1893. Application iiled December 8, 1892. Serial No. 454,473. (Nomodel.)

Y ing to be a full, clear, and exact description thereof.

My invention relates to sash raisers, and

has .special reference to a device for raising and lowering swingingsash.

The main difficulty with the sash raisers heretofore used was that theywere very large and cumbersome,required long levers to operate themwhich generally marred or spoiled the appearance of the window. The sashusually had to be cut away to a large extent to allow the sash raiser tofit therein, and the operating lever generally pressed down'on thewindow sill, rubbing and marring the appearance of the same.

The object of my invention is to overcome these objections, and toprovide asash raiser which is small, neat and compact in appearance, andone that can be applied to any swinging window without the employment ofa long lever to operate the same, and yet one which is capable of greatlifting power and strength. v

To these ends my invention consists, generally stated, in combining witha sash frame, having a plate in the window sill thereof, a sash having asash raiser secured thereto formed of a bearing piece carried by thesash and having a pivot engaging with the plate on the window sill, abox or case sliding on the bearing piece, and anV eccentric or cammountedin the box and adapted to move the same upon the bearing piece.

To enable others skilled in the art to make and use my invention, I willdescribe the same more fully, 'referring to the accompanying drawings,inwhich- Figure l is a plan view of a swinging sash and frame having myimproved sash raiser applied thereto. ing the sash raised and in anotherposition. Fig. 3 is a side view of my improved sash 5 raiser showing itin its normal position. Fig.

Fig. 2 is a like view show- Lt is a like view showing it in its raisedposition. Fig. 5 is an end view of the same. Fig. 6 is a verticalcentral section through the same. Fig. 7 is a perspective view of thebox or receptacle. Fig. 8 is a perspective view of the bearing piece,and Fig. 9 is a perspective view of the operating lever.

Like letters herein indicate like parts in each of the views.

My improved sash raiserA is shown in the drawings as applied to theswinging sash a which is hung in the window frame b, said window framebeing provided with the usual y strips c c', the strip c being on theoutside of the window frame h. The ksash raiser A is shown as preferablyattached to the bottom of the swinging sash a and has the bearing pieced which is pivoted at cl to the plate e on the window sill f by means ofthe pin d2, said pin d2 forming one of the pivots on which the swingingsash a swings.. The bea-ring piece d has the horizontal portion cl3andthe vertical portion d4 extending up into the box or case g of thesash raiser A, said box or case g containing the mechanism for operatingthe sash raiserA and being attached to the swinging sash a by means ofscrews g passing through holes g2 in the lugs g3 on said box or case.The box or case g has an opening 1o at its bottom through which theparts enter, and a guide g4 is formed in the center of the box or caseg. This guide g4 fits inl the opening d between the vertical guide armsCZ5VCZ6 on the bearing piece d and acts to guide the box or case g as itslides in'its movement in raising and lowering the sash d. In order tooperate the sash raiser and move the box or case g and with it the sash@there is provided the operating lever h which has the enlarged head hfor covering the box or case g, while extending out from the inner faceh2 0f this enlarged head h is the pivot pin h3 which passes through anopening g5 in the guide g4 and box or case g and acts to hold the partscomposing the sash raiser together, and the bearing piece dk sliding inthebox or case g forms a bearing for the turning of the lever h, whilethe said pin h?, isY vclinched to the back of the box or case. g. Forthe purpose of raising and lowering the sash athe enlarged head 71. ofthe operating lever h has on its inner face 712 the eccentric or cam t',the said eccentric or cam t' being formed as part of said operatingleverh. Fitting on the inner face t" of the eccentric or cam t' is the lug orpin j formed as part of the vertical guide arm d5 of the bearing pieced, while the outer face i2 of the eccentric or cam 7l bears and travelson the projecting face d7 on the vertical portion d4 of the bearingpiece d. The vertical portion d4 of the bearing piece d is cut away, asat d8, so that the guide g4 on the box or case g can slide therein. Theswinging sash c, has the follower 7c resting on its top; said follower7c sliding in guides 7a in the window frame b, the said swinging sash abeing pivoted at l to the follower 7c by means of the pin Z shown indotted lines Fig. l. The follower 7c lits tightly down on top of theswinging sash a in order to prevent any air entering the apartment whenthe sash is closed, this follower 7c being held down on said swingingsash a by the springsm on each side of the follower 7c. The springs mlit around rods n rigidly secured to the follower 7c, while the otherends of the rods n pass loosely through openings oin the lugs or bars 0.These lugs or bars o extend out from the guides 7c in the window frameb, and the springs m being interposed between said lugs or bars o andthe top of the follower 7c allow the follower to move up and down withthe swinging sash. A handle h4 is provided on the end of the lever 7i,for convenience in operating.

As illustrated in Fig. l, the sash raiser A is ,shown in its normalposition with the swinging sash d closed. Vhen it is desired to open theswinging sash a, all that is necessary is to grasp the handle h2 withone hand and turn the lever h to the left, when the pinj on the verticalarm d5 of the bearing piece cl will travel around on the inner face i ofthe eccentric or cam i until it reaches the most remote point on theeccentric or ca'mi from the pivot pin 7e on the leverh, this pivot pin kacting as a journal bearing. The outer face i2 at the Same time travelson the projecting face C17 on the bearing piece d, the pin j, inner facei, projecting face (Z7, and outer face t2, acting to raise the box orcase g through the medium of the bearing piece d, and through the guideg4 contained in the box or case g sliding in the vertical guide arms d5d6 on the bearing piece d, and so raise the swinging sash a and followerk, compressing the springs lm, against the lugs or bars o and allowingthe rods n to pass through the openings o in said lugs or bars o. Theswinging sash d will then be above and clear of the strip c on thewindow -sillf, when the swinging sash a will be free to swing on the pind2 on the bearing piece d and the pin Z on the follower 7c. The swingingsash a can be closed and locked by swinging it back to close the windowand turning the lever 71, back to the right, allowing the pin j totravel back on the inner face t" of the eccentric or cam and the outerface 'i2 on the projecting face (Z7 of the bearing piece d until the pinj reaches the nearest point on the eccentric or cam t' to pivot pin 7a2,so lowering the box or case g on the sash a through its guide g4engaging with the vertical guides d5 d6 on the bearing piece d, and solowering the sash a down on the window sill f. The follower 7c dropsdown with the swinging sash a on account of the release of pressure onthe springs m, so lowering the follower with the sash.

When my improved sash raiser is in use, no air can get into theapartment when the window is closed, on account of placing the windowstrips on both the outside and inside of the window frame, and thefollower being held tightly down on the sash. The sash raiser is easilyoperated and the position of the sash can be regulated and locked in anyposition desired. The parts composing .the same are simple, strong intheir constructlon, and capable of great lifting power.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In combination with a sash frame having a plate in the window sillthereof, a `sash having a sash raiser secured thereto formed of abearing piece carried by the sash and having a pivot engaging with theplate on the window sill, a box or case sliding on the bearing piece andan eccentric or cam mounted in the box and adapted to move the same uponthe bearing piece, substantially as and for the purposes set forth.

2. In sash raisers, the combination with a bearing piece carrying apivot, of a box or case having a guide-way therein, a Vertical guide onsaid bearing piece moving in the guide way and an operating lever havingan eccentric or cam engaging with the vertical guide, substantially asand for the purposes set forth.

3. In sash raisers, the combination with a bearing piece, of a box orcase having guide ways therein, vertical guide arms on said bearingpiece moving in said guide-ways, and a lug or pin on one of saidvertical guide arms engaging with an eccentric or cam on the operatinglever, substantially as and for the purposes set forth.

4. In sash raisers, the combination with a bearing piece, of a box orcase having a guideway therein, a vertical guide on said bearing piecemoving in said guide-way, a lug or pin on said vertical guide engagingwith the inner face of a projecting eccentric or cam on the operatinglever, and a projecting face on said bearing piece engaging with theouter face of said eccentric or cam, substantially as and for thepurposes set forth.

5. In sash raisers, the combination-of a window frame, a sash mounted onvertical pivots within said frame, the lower pivot being IOC IIO

formed of a box or case having a guide-way In testimony whereof I, thesaid DAVID P. therein, abearing piece mounted therein, and HOPKINS, havehereunto set my hand.

carrying the pivot pin, and an eccentric mounted in the case andengaging with the DAVID P HOPKINS' 5 bearing piece to raise or lower thesash there- Witnesses:

on, substantially as and for the purposes set J. N. COOKE,

forth. v WM. J. MARTIN.

